Heymann Jody. (1992). Profit at the Bottom of the Ladder: Creating Value by Investing in Your Workforce. Boston: Harvard Business Press.
Παραπομπή Chicago StyleHeymann Jody. Profit At the Bottom of the Ladder: Creating Value By Investing in Your Workforce. Boston: Harvard Business Press, 1992.
Παραπομπή MLAHeymann Jody. Profit At the Bottom of the Ladder: Creating Value By Investing in Your Workforce. Boston: Harvard Business Press, 1992.
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